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What is Marginocephalia?

Pronunciation: mar-JIN-o-seh-FAL-ee-uh
Author: Paul Sereno
Year: 1986
Meaning: Fringe heads (see etymology)
Locomotion: Bipedal and Quadrupedal (2 and 4 legs)
Synonyms: None known
[Sereno, 1998]Definition
Triceratops horridus, Pachycephalosaurus wyomingensis, their most recent common ancestor and all descendents.
About
Marginocephalia is a clade of ornithischian dinosaurs that evolved in the Jurassic period and peaked during the Late Cretaceous. All herbivorous, some walking on two legs some walking on four, and all united by the presence of a bony ridge or frill of varying size at the back of the skull, their number includes the bone heads (pachycephalosaurs) and frilled-horn-faces (ceratopsians).

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Etymology
Marginocephalia is derived from the Latin "margin" (fringe, border) and the Greek "kephale (head) and "-ia" (neuter plural), referring to the frills of its members, formed by bones at the back of their skulls.
Relationships
Further reading
• Thomas R. Holtz, Jr (2008) "Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages". /uk
• Richard J. Butler, Paul Upchurch and David B. Norman (2008) "The phylogeny of the ornithischian dinosaurs".
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To cite this page:
Atkinson, L. "DinoChecker FAQ entry :: What is Marginocephalia?"
http://www.dinochecker.com/dinosaurfaqs/what-is-marginocephalia›. Web access: 30th Mar 2017.
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